52649751 has 32 divisors (see below), whose sum is σ = 88339968. Its totient is φ = 27095040.

The previous prime is 52649747. The next prime is 52649777. The reversal of 52649751 is 15794625.

It is not a de Polignac number, because 52649751 - 2² = 52649747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52649251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25095 + ... + 27111.

It is an arithmetic number, because the mean of its divisors is an integer number (2760624).

Almost surely, 2^52649751 is an apocalyptic number.

52649751 is a deficient number, since it is larger than the sum of its proper divisors (35690217).

52649751 is a wasteful number, since it uses less digits than its factorization.

52649751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its digits is 75600, while the sum is 39.

The square root of 52649751 is about 7256.0148153101. The cubic root of 52649751 is about 374.7993023849.

The spelling of 52649751 in words is "fifty-two million, six hundred forty-nine thousand, seven hundred fifty-one".